Dukes of Monterano Duchi di Monterano First holder Gaspare Altieri, 1st prince of Oriolo * c. 1650 Records #3 Holders Family filter On/Off 1 Gaspare Altieri, 1st prince of Oriolo * c. 1650 3 Girolamo Antonio Altieri, 3rd prince of Oriolo, 3rd prince of Viano e 3rd duke of Monterano * 1673 4 Emilio Carlo Altieri, 4th prince of Oriolo, 4th prince of Viano e 4th duke of Monterano * 1723 Corrections and Updates To suggest a correction or an update. Click Here
